Settling-tank.



A. D. WYGKOPP.

SETTLING TANK.

APPLICATION FILED JAN. 19, 1913.

1,102,463. Patented July 7, 1914.

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MW WWW WTTE SATE$ PTENT FTQ ANDREW D.

WYCKOFF, OF FORT WAYNE, INDIANA, ASSIGNOB TO S. F. BOWSER 86 COMPANY, INCORPORATED,

016 FORT WAYNE, INDIANA.

SETTLING-TANK.

Specification of Letters Patent.

Patented July 7 19141.

Application filed January 18,1913. Serial No. 742,763.

To all whom it may concern:

Be it known that 1, ANDREW l). WVYoxorr, a citizen of the United States, residing at Fort Wayne, in the county of Allen and State of Indiana, have invented oertainnew and useful Improvements in Settling-Tanks, of which the following is a specification.

This invention relates to settling tanks, and has for its primary object the provision of an improved settling tank which shall have improved means for separating foreign substances from a liquid.

lVith the above and other objects in view, this invention consists substantially in the construction, combination and arrangement of parts, all as hereinafter morefully de scribed, claimed'and illustratedin the accompanying drawings which form a part of this. specification and show thepreferred embodiment of my invention.

In the drawings Figure 1 is a perspective view of my invention showing a portion of indicated by the arrows.

This invention is particularly adapted for use in dry cleaning systems employing volatile liquids which are used over and over and which must necessarily be somewhat cleansed after each using. In these dry cleaning systems it is desirable to have a settling tank for the dirty liquid in which it may be stored and which will facilitate the separation of the foreign matter from the liquid without the employment of a filter.

Reference numeral 10 indicates the wall of my settling tank, which is preferably cylindrical, and is provided with a bottom 11 in the shape of an inverted cone.

12 is an apertured closure for the top of the tank 11, and 18 is a removable manhole cover attached in any suitable manner, as by the cap screws 14:, to the apertured closure 12. The manhole cover 13 is pierced in four places and bears upwardly extending bosses 15, 16, 17 and 18, tapped for engagement with a plurality of pipes to be described later. The bosses 16, 17 and 18 extend clownwardly below the manhole cover, as at 16 and 18 and are also tapped in their lower extensions for engagement with pipes depending within the tank and which will be described later. Dirty liquid is brought to the tank in a supply pipe 19 and discharges and is taken approximately on the line 22 of Fig. 1 looking in the direction into the tank through a union 20, a nipple 21, a T 22, a connecting nipple 23 in threaded engagement with the upper extension of the tapped boss 18, andan intake pip'e 24-, the intake pipe 2 lbearing at its lower end a T 25 so disposed that the liquid discharged therefrom will be, given a rotary motion within the tank. The upper end of the intake pipe 24: is in threaded engagement with the lower tapped portion l8 of the boss 18. Liquid for cleaning purposes is drawn from the tan-k 10 through the outlet pipe 26, threaded into the lower tapped extension 1'6 of the boss 16, and elbow27, anoutlet nipple 28, a'union 29 and a line pipe 30. The outlet pipe 26 depends from the manhole'covei 13 to a point adjacent the lower extremity of thecylindrical portion 10 of the settling tank. Another outlet pipe 31 depends from the lower tapped extension of the boss 17 to a point adjacentthe lower extremity of the inverted. cone 11, andis adapted to draw oil the lowest stratum ofliquid in the tank through an elbow 32 threaded into the upper extension of the tapped boss 17 a nipple 33, a union 3 1 and a line pipe 35. A vent for air is provided through an elbow 36 in threaded engagement with the upwardly extending tapped boss 15, a vent nipple 87, a union 38 and a vent pipe 39.

ln the use of this settling tank, dirty liquid is brought from the cleaner and discharged into the tank through the intake pipe 24 and its T 25. As the liquid flows from the T 25 it assumes a rotary motion in the settling tank which tends to wash the sides thereof and cause the foreign matter in the liquid to gravitate toward the lowest extremity of the cone tip 11. The pitch of the wall of the cone tip 11' facilitates the gravitation of foreign matter to the lower extremity thereof. When suflicient foreign matter has settled into the lower extremity of the cone tip 11, to render the upper stratum of oil in the tank again fit for cleaning purposes, the cleansed liquid is drawn out through the outlet pipe 26 leaving the residuum at the low-er extremity of the cone tip practically undisturbed. It will be further noted that the discharge of dirty liquid from the T 25, while giving a rotary motion to the liquid which is being discharged and to the upper strata of any liquid which may be in the tank, leaves the residuum in the lower extremity of the cone matter collected inv the lower extremity of V the cone tip 11 is drawn off through the discharge ipe 31, which, as stated above, depends from the manhole cover 13 to a point adjacent the extreme bottom of the tank.

Ready access is had to the tank without disturbing other portions of the dry cleaningsystem with which it may be employed; the unions 20, 29, 34: and 38 serving as a means for isolating the tank from the system and the cap screws 14 providing means whereby the manhole cover and the depending pipes 24:, 26 and 31 may be removed.

Realizing that the spirit of my invention may be readilycopied by one skilled in the art through the employment of various parts of different shapes and differently disposed with relation to each other, I have herein described and shown the preferred embodiment of my invention, but do not limit myself to this exact construction.

WVhat I claim is: p p

1. The combination of a tank having a downwardly concaved bottom, means within the tank adjacent the vertical center thereof and spaced from the lowest point of the bottomfor discharging liquid into the tank horizontally, and means within the tank adj acent the vertical center thereof-and spaced from-the lowermost point of the bottom of the tank for withdrawing liquid from the i tank in an approximately vertical direction.

2. The combination of a tankhaving a downwardly concaved bottom, means within the tank adjacent the center thereof at'approximately the level of the highest part of the bottom for discharging liquid horizontally into the tank in two directions at once, and means within the tank and adjacent the center thereof and at approximately the level of the highest part of the bottom for withdrawing liquidfrom the tank in an approximately vertical direction.

3. The combination of a tank having a downwardly concaved bottom, means within I the tank adjacent the'center thereof at approximately the level of the'highest part of the bottom for discharging liquid horizontally into the tank in two directions at once, means within the tank and adjacent the center thereof and at approximately the level of the highest part of the bottom for Withdrawing liquid from the tank in an approximately vertical direction, and means positioned at. the-lowest part of the bottom for withdrawing liquid from the tank- In testimony whereof-I have signed my name to this specification, in the presence of two subscribing witnesses, of January A. D.- 1913.

ANDREW 1). WYGKOFF.

; Witnesses: i

J. R. MATLACK, n L. W. THOMAS.

on 18th day 60 Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, I: i

Washington, D. G. I 

